BootMii doesnt support the wii remote. If you don't have a gamecube controller, you will have to use the (physical) POWER and RESET buttons on the wii itself.
This requires confidential software to do. Download link is out there, but we can't help you with that. You will also need this program, that has a tutorial in it's README: https://github.com/FoofooTheGuy/VidInjector9000